Jambs christy



L CHRISTY.

I Cfelr Truck.

' Ne. 61,713. A Patented Feb. 5, 1867.7-

N PETERS. FHOTD-LITHDGRAFNER, WASHINGTON. DfC.

-" JAMES CHRISTY, OF PHILADELPHIA, PENNSYLVANIA.

' Letzer@ Param No. 61,713, ma February 5,1867.

IMPROVBD BLSTEB. OB. 'RAIBBAD CARS.

@te rlgehnle aferra mit tiges: tttrts baten mit making ont ai ilgc time.

TO ALL WHOM IT MAY'CONCERN:

Be it known that I, JAMES CHRISTY, of Philadelphia, Pennsylvania, have invented an Improved Bolster for Railway Cars; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawing, and to the letters of reference marked thereon.

My improved bolster consists of certain longitudinal and transverse beams and staynrod's, arranged and connected together substantially as described hereafter, so as to prevent sagging at the outcrends of the bolster, and so that these ends may be elevated at pleasure. l

I n order to enable others skilled in the art to make my invention, I will now proceed to describe the manner of constructing the same, reference beinghad to the accompanying drawing, in which.

Figure l is an exterior side: view of my improved bolster for railway cars.

Figure 2, a vertical section. i

Figure 3, a transverse sectionon the line 1-2, tig. 2.

Figure 4, a. plan view; and

Figure 5, a transverse section on the line 3-4, iig.- 4.

Similar letters refer to similar parts throughout the several views.

The improved bolster consists of the two longitudinal beams A and A', two end transverse beams D andD, intermediate transverse beams E and E', and F and F', and the diagonal braces G and G', and H and H. :The two longitudinal beams are connected together by the transverse beams above designated, and by the central beam I, and over the latter, and over the said beams A and A passesa metal strap, l1, and to the under side of the-same beams is securedV a plate, a. Two bolts, rl and d', (iig. 3,) are fitted, one to each projecting end of the strap b, the upper square ends of thebolts passing through a plate e. Each bolt`is provided with a nut, f, bearing on the strap Z1, by turning which nuts the plate e may be raised or lowered at pleasure. The upper end of each of the diagonal braces G and G bears against a plate, h', and is secured't'othe beams A and A by a bolt, z', the lower rounded end of each diagonal brace rest-ing in a pocket, j, secured to the under side of the said longitudinal beams A and A. In like manner the upper ends oi the diagonal braces II and H bear against the transverse beams E' and E', the lower rounded ends of the said diagonal braces resting in corners formed by the central beam I and plaat-,e a, uthe diagonals being-secured by bolts to the longitudinal beams A and A. The opposite transverse beams E and E are connected together by horizontal bolts fm and m', and the two stays n and'z" extendfrom end to end of the bolster, passing through .plates Q at the ends of the beams A and-A', where they are furnished with nuts, t, the stays p assing over and being supported in the middle by the adjustable plate e. W isthc usual king-bolt, passing through the bottom :vof the car, through the plato e, strapl, central beam I,

and plate a. The sagging'of the outer ends of the bolster-beams of railway cars so as tobear'orr 'the truck-framev `is a matter of frequent annoyance and complaint, and interferes seriously with Athe free movement of the car body lon the trucks- -Should the outer ends of the above-described bolster be depressed, they can-be readily elevated by turning the nuts tt of thestay-bolts n and n', or so adjusting the nuts f of the bolts d as to elevate the plate e, and the middle of the stay-bolts, the diagonal braces G and G', and H and H', readily accommodating themselves to this elevation of the outer ends of the bolster, and increasing the rigidity of the same. The outer ends of the bolster mayalso be elevated by tightening the nuts of the bolts k.-

I claim as my invention, anddesire to secure Letters-'Patent- 1. The' bolster composed of the within-described longitudinal and transverse beams, diagonal braces, and

stay-rods, the whole being arranged and connectedtogether substantially as and'for the purpose herein set forth. 2. The combination of the` strap b, adapted to the longitudinal Vand central beams, the adjustable bolts d and d', thc plate e, and stay-rods n and 'n'.

3. The combination ot the longitudinal and transverse beams, the adjustable or self-accommodating braces G G', and H H', rounded at the lower ends,- and bolts z' and Ic. v

in testimony whereofl I have signed my name -to this specification in the-presence of two subscribing witnesses.

l' JAS. CHRISTY.

Witnesses:

CEAS. E. Fcsrnn, WJ. R. Drama 

